Backpack:
The function of the backpack cover is mainly to protect the backpack during the carrying process. In the process of cycling rear pannier bag to prevent the backpack body is hooked by the tree and rubbed with the rock rub, but also have a certain degree of waterproof. At present most of the backpack with the bag comes with back cover. Everyone in the purchase of light and waterproof to choose a strong anti-tear fabric. At the same time try to buy beautiful color backpack cover, because in the outdoor environment eye-catching, pretty color can play a certain warning role.